Read_Tid - Siemens SIMATIC Ident Function Manual

4.5.3.4

Read_TID

The "Read_TID" instruction reads data from the TID memory area (Tag Identification
Memory Bank) of the RF600 transponder. The length of the TID to be read is specified by
the "LEN_DATA" parameter. The length of the TID varies depending on the transponder and
can be found in the transponder data sheet.
Figure 4-12
Table 4- 15
Parameter
LEN_DATA
LEN_ID
EPCID_UID
IDENT_DATA
Ident profile, Add-on instruction for Rockwell systems
Function Manual, 01/2019, C79000-G8976-C410-03
Instruction "Read_TID"
Explanation for the instruction "Read_TID"
Data type
INT
SINT
SINT[62]
SINT[10]
4.5 Programming add-on instructions
Default values Description
0x00 Length of the EPC memory to be read
out (1 ... 62 bytes)
0x00 Length of the EPC-ID/UID
Default value: 0x00 ≙ unspecified
single tag access (RF68xR)
0 Buffer for up to 62 bytes EPC-ID, 8
bytes UID or 4 bytes handle ID.
2 - 62-byte EPC-ID is entered at
•
the start of the buffer (length is set
by "LEN_ID")
8-byte UID is entered at the start
•
of the buffer ("LEN_ID = 8")
4-byte handle ID must be entered
•
in the array element [5]-[8]
("LEN_ID = 8")
Default value: 0x00 ≙ unspecified
single tag access (RF620R, RF630R)
0 Read TID
Note:
When necessary, an array of any size
can be transferred to this parameter.
Note that the array must be ≥ 10 bytes
long (e.g. "SINT[12400]").
Configuring the instructions
35